{"product_id":"shimano-dura-ace-fc-r9200-dura-ace-12-speed-double-power-meter-chainset-52-36t-172-5-mm","title":"Shimano Dura-Ace FC-R9200 Dura-Ace 12-speed double Power Meter chainset; 52 \/ 36T 172.5 mm","description":"\u003cul\u003e \u003cli\u003eWith several years of development and working closely with professional teams you can expect extreme accuracy from Shimano's first fully integrated power meter HollowTech II 12-speed Dura-Ace chainset\u003c\/li\u003e \u003cli\u003eAccurately calibrated strain gauges are integrated inside both left and right crank arms, this provides a stable measurement system through rotation from both sides for extremely precise data\u003c\/li\u003e \u003cli\u003e+\/-2% accuracy of strain gauge measured power\u003c\/li\u003e \u003cli\u003eBluetooth and ANT+ with wireless firmware update and data acquisition system\u003c\/li\u003e \u003cli\u003eEasily rechargeable integrated battery with fully waterproof reliable electric system\u003c\/li\u003e \u003cli\u003eHollow outer chainring, giving vast improvements in rigidity and increased weight savings\u003c\/li\u003e \u003cli\u003eThe hollow outer chainring has essentially removed outer chainring flex, hugely improving shift performance making it precise even under high load\u003c\/li\u003e \u003cli\u003eThese industry leading HollowTech II cold forged hollow crank arms have evolved to increase rigidity, reduce weight, and improve strength\u003c\/li\u003e \u003cli\u003eThe teeth have been developed to work only in conjunction with the 12-speed chains for improved contact providing more efficiency and improved power transfer\u003c\/li\u003e \u003cli\u003eThere is a wide range of chainring ratios and crank arm lengths available enabling customisation for all riders and racing disciplines\u003c\/li\u003e \u003cli\u003eHollowTech II integrated bottom bracket design uses a wider bearing placement and larger axle diameter for increased stiffness and efficiency\u003c\/li\u003e \u003cli\u003eBottom bracket seal design has a minimal bearing interface gives superbly smooth rolling and increased durability\u003c\/li\u003e \u003c\/ul\u003e","brand":"Shimano Dura-Ace","offers":[{"title":"52\/36T \/ 172.5mm","offer_id":43186975178909,"sku":"FCR9200PD26","price":771.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0021\/9434\/1977\/products\/fb5370bf-afd0-4d59-9220-e05ce10ffebd.jpg?v=1671192404","url":"https:\/\/www.bikeparts.co.uk\/products\/shimano-dura-ace-fc-r9200-dura-ace-12-speed-double-power-meter-chainset-52-36t-172-5-mm","provider":"BikeParts.co.uk","version":"1.0","type":"link"}